Thank you Lomcevak - couldn't see it on anything else on the video.
If his G indicator wasn't working correctly, could he have exceeded the aircraft limits without knowing it causing damage either internally or external. As it would appear that the fatigue meter was only checked once a year and not after each flight, as per the AAN. And with the extensive damage to the aircraft some damage may not have been obvious to the AAIB, like the pitot which they stated couldn't be checked for serviceability.